EP1800061A1 - Brenner für fluidische brennstoffe und verfahren zum betreiben eines derartigen brenners - Google Patents
Brenner für fluidische brennstoffe und verfahren zum betreiben eines derartigen brennersInfo
- Publication number
- EP1800061A1 EP1800061A1 EP05797157A EP05797157A EP1800061A1 EP 1800061 A1 EP1800061 A1 EP 1800061A1 EP 05797157 A EP05797157 A EP 05797157A EP 05797157 A EP05797157 A EP 05797157A EP 1800061 A1 EP1800061 A1 EP 1800061A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- gas
- mixing
- liquid
- burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/002—Supplying water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/03343—Pilot burners operating in premixed mode
Definitions
- the present invention relates to a burner for fluid ⁇ cal fuels, which is in particular to operate either with a gaseous or liquid fuel as a fluid fuel and in the prior to burning of the fluid fuel, a mixing of the fluid fuel takes place with an oxidizing agent. Moreover, the present invention relates to a method of operating such a burner.
- the inventive burner and he ⁇ -making modern methods are particularly suitable for use in gas turbine plants.
- an air-fuel mixture is burned in a combustion chamber, the exhaust gases enabling the turbine of the gas turbine plant in rotation and as the ther- mal energy of the combustion process into mechanical energy convert ⁇ Ener.
- the combustion chamber is equipped with burners. The burners mix the fuel with the air and burn the mixture.
- Nitrogen oxides are formed during the combustion process essentially by the fact that molecular oxygen and molecular nitrogen are split and the atomic Oxygen or the atomic nitrogen then rea ⁇ giert with molecular nitrogen or molecular oxygen to nitrogen oxides.
- the burner described in DE 42 12 810 can be operated in premix mode both with liquid fuels and with gaseous fuels.
- it comprises at least one opening into the air supply channel of the burner internal ⁇ fuel line for liquid fuel and at least one opening into the air supply duct for fuel line gasförmi ⁇ gen fuel.
- the fuel lines are each associated with outlet ⁇ openings through which the respective fuel can be injected into the air stream leading to the burner.
- outlet ports are such to the reasonable supplied by means of the per ⁇ patented fuel lines fuel fits that it is well mixed with the Ver ⁇ combustion air flowing to the burner.
- the first object is achieved by a method for operating a fluid fuel burner according to claim 1 and the second object by a fluid fuel burner according to claim 6.
- the dependent claims contain advantageous developments of the invention.
- the oxidizing agent any agent capable of oxidizing the fuel, particularly, for example, air, is suitable.
- the method according to the invention can in particular also be designed such that optionally liquid fuels, ie all combustible liquids such as crude oil, methanol, etc., or gaseous fuels, ie all combustible gases such as natural gas, coal gas, propane gas,
- Methane gas, etc. can be used as a fluid fuel.
- the inventive method is characterized in that a-find as a fluidic fuel using a liquid fuel prior to mixing with the oxidizing agent is mixed with a gaseous or vaporous carrier stream and for mixing the fluid fuel with the Oxidati ⁇ onsstoff mixing of the liquid fuel contained ⁇ the carrier stream is carried out with the oxidizing agent.
- the inventive method makes it possible for the mixing of the fuel with the oxidizing agent - ie for Mi ⁇ rule of the fuel-containing carrier stream with the Oxidizing agent - to use the same nozzle system, which is also used when mixing a gaseous fuel with the Oxi ⁇ dationsffen.
- Separate supply ports takes place for feeding of the liquid fuel into the mixing region, so in that region in which the mixing of the Brennstof ⁇ fes with the oxidizing agent, need not be hands before ⁇ .
- the structural design of the burner can therefore be simplified in particular in the field of fuel supply channels.
- the carrier stream is largely free of molecular oxygen during combustion due to the carrier stream. Especially before ⁇ geous it is when the carrier flow at all does not contain molecular-molecular oxygen.
- gas or vapor for the Trä ⁇ gerstrom are in particular molecular nitrogen or water vapor.
- mixing of the liquid fuel with the carrier stream can take place by injecting the liquid fuel into the carrier stream.
- injecting a fine atomization of the liquid fuel is carried out in the carrier stream.
- a fluid fuel burner according to the invention in which, prior to the burning of the fluid fuel, a microfluidic See that the fluidic fuel is carried out with an oxidizing agent and in particular also can be configured so that it is to be operated optionally with a gaseous or a liquid fuel as a fluid fuel, summarized
- a mixing passage communicating directly or indirectly with the fuel supply for supplying liquid fuels, the gas supply and the oxidant supply, in which the fluidic fuel is mixed with the oxidizing agent.
- the burner according to the invention is characterized in that the fuel supply for supplying liquid fuels and the gas supply are arranged relative to each other so that prior to the entry of a liquid fuel in the mixing passage ⁇ mixing of the liquid fuel with a means of the gas supply gas supplied or vapor carrier stream can take place.
- the gas supply thus serves both to supply a gaseous fuel (when the burner is operated with a gaseous fuel) and to supply an inert gaseous or vaporous medium, which forms the gaseous or vaporous carrier stream (if the burner is operated with a liquid fuel).
- the burner according to the invention allows, in particular, egg NEN liquid fuel to mix and then deliver this mixture for mixing with the oxidation ⁇ middle of the mixing passage prior to entering into the mixing passage with a gaseous or vaporous carrier stream.
- the number of supply lines and in particular the number of inlet openings in the mixing passage can be reduced, since the same inlet openings to the mixed passage for the gaseous fuel as for the liquid fuel can be used (in the carrier stream) NEN.
- Separate inlet openings for liquid fuels can therefore be omitted in the burner according to the invention.
- Insbe ⁇ sondere ensure the con- zip convinced for the gaseous fuel inlet openings and a high spatial Mi ⁇ research potential for mixing of the liquid Brennstof ⁇ fes carrier containing stream with the oxidant.
- the fuel supply for the liquid fuel via one or more atomizers, for example. Injectors, opens into the gas supply.
- the atomizers allow atomization of the liquid fuel when it is introduced into the carrier stream.
- the sputtering leads to a good mixing and also facilitates evaporation of the liquid fuel due to the small dimensions of the fuel droplets formed during sputtering. Overall, the maximum possible combustion temperature and thus the NO x emissions can be reduced.
- the gas supply can flow into the mixing passage via a gas nozzle system.
- the gas nozzle system can be spatially very well mixed with the oxidizing agent the gasför ⁇ -shaped fuel or the carrier flow with the liquid fuel material.
- swirl vanes for swirling the oxidizing agent may be present, which have cavities in communication with the gas supply. Wenigs ⁇ least part of the opening into the mixing passages gas nozzles of the gas nozzle system is in this case with the cavities of Swirl blades and thus connected to the gas supply.
- the fuel may in particular so in the shovels by means of the swirl generated ⁇ swirl zone are introduced to give the Mi ⁇ rule of the fuel with the oxidant promotes.
- nozzle pipes may also be present in the region of the mixing passage which have cavities connected to the gas supply. At least some of the gas nozzles of the gas nozzle system which open into the mixing passage are then in communication with the gas supply via the cavities of the nozzle tubes.
- FIG 1 shows a first embodiment of a burner OF INVENTION ⁇ to the invention in a schematic Darstel ⁇ lung.
- FIG 2 shows a second embodiment of a burner OF INVENTION ⁇ to the invention in a schematic Darstel ⁇ lung.
- FIG 1 A first embodiment of the burner according to the invention is shown in FIG 1 in a sectional view.
- the burner according to the invention comprises an internal burner system 1, which is referred to in the following pilot burner system 1, and a main burner system 3 concentrically arranged around the pilot burner system 1.
- the pilot burner system 1 comprises an internal liquid fuel supply channel 5, an internal gas supply channel 7 for gaseous fuels and one ⁇ ren air supply channel 9.
- the inner gas supply channel 7 is here arranged concentrically around the inner supply channel 5 for the liquid fuels around.
- the inner air supply passage 9 is arranged concentrically around the inner gas supply passage 7.
- the inner supply channel 5 for liquid fuels flows through a nozzle 11 into the combustion chamber 13.
- the inner gas supply channel 7 opens via outlet openings 15 in the air supply channel 9, in which swirl blades 17 are arranged, which is responsible for a swirling of the gas in the air resulting air-gas mixture and thus ensure good Vermi ⁇ tion of the two components.
- a suitable ignition system may be arranged, which is not shown here.
- the pilot burner system 1 serves to maintain a stability of the burner flame supporting pilot flame and allows in principle the operation of the burner as diffusi ⁇ onsbrenner or rich (fuel-rich) premixed burner, but this is not used for reasons of emissions in general.
- the main burner system 3 arranged concentrically around the pilot burner system 1 comprises a gas supply channel 31, one or more supply channels 33 for supplying a liquid fuel and at least one air supply channel 35 as oxidant supply channel.
- a gas supply channel 31 one or more supply channels 33 for supplying a liquid fuel and at least one air supply channel 35 as oxidant supply channel.
- the oxidizing agent is used in the present embodiment, air.
- the liquid fuel supply channel opens into the gas supply channel 31 via nozzles 43.
- swirl blades 37 are arranged, which provide for a swirling of the air flow flowing through the air supply passage 35 in the direction of the combustion chamber 13. This part of the air supply channel 35 forms a mixing passage for Mi ⁇ rule of fuel with air as the oxidant.
- the swirl blades 37 are at least partially hollow out ⁇ forms.
- the cavities of the swirl vanes 37 are connected via openings 39 to the outer gas supply channel 31.
- the swirl blades 37 have outlet openings 41, through which a gas supplied via the gas supply channel 31 can enter into the air supply channel 35.
- the outlet openings 41 are formed as nozzles and arranged on ⁇ order that the gas passes together with the air at least a portion of the swirl blades 37 and is swirled so as to achieve a good mixing with the air.
- a supply gasför ⁇ -shaped fuel for example natural gas takes place, through the outer gas supply duct 31 into the air supply channel 35.
- the arranged in the air supply passage 35 swirl vanes 37 help to create a mixture of the gaseous fuel with the air so that the burner is to be operated in premix mode.
- the burner is to be operated with a liquid fuel, for example fuel oil, then the liquid
- a supply of an inert gas for example, molecular nitrogen, or the supply of a vapor, such as water vapor.
- Zerstäu ⁇ ben of the liquid fuel during injection into the Gaszu ⁇ drove channel 31 creates a gas-liquid mixture with the finely divided liquid droplets.
- the droplets of liquid fuel evaporate at least in part, so that part of the fuel after atomization into the gas supply channel 31 is in the gas phase.
- the passage of the liquid fuel ⁇ substance in the gas phase can be promoted by preheating the inert gas supplied ⁇ led or of the supplied steam and / or the fuel. In this way, complete vaporization of the atomized liquid fuel can also be achieved. Preheating the carrier medium to a defined temperature can also be used to control the mixing quality of the mixture via the pulse.
- the inert gas or the steam serves as a carrier stream for the droplets of the liquid fuel or the transition into the gas phase liquid fuel.
- the fuel contained ⁇ tend carrier stream then flows as a gaseous fuel through the openings 39 into the cavities of the twist scoops 37 and is injected from there through the outlet openings 41 in the air supply duct 35th
- the swirl vanes 37 thereby ensure a turbulence of the carrier flow with the air and thus for a good mixing of the fuel contained in the carrier stream with the air as the oxidant.
- the burner can therefore also be operated in pre-mix mode when operating with liquid fuel.
- the fuel is injected into the air supply channel 35 independently of the type of fuel, ie regardless of whether a liquid fuel or a gaseous fuel is used, by means of the outlet openings 41, which have hitherto been used were used only for injecting gaseous fuel.
- a liquid fuel is previously injected via the nozzles 43 into a carrier stream, which is supplied via the gas supply channel 31.
- the liquid fuel is then taken up as vaporized fuel or as finely divided fuel in the form of suspended droplets from the carrier stream and injected through the outlet openings 41 into the air supply channel 35.
- An additional outlet or inlet nozzle for supplying liquid fuel into the AIR SUPPLY ⁇ drove channel 35 is in the burner according to the invention therefore not nö ⁇ tig.
- FIG. 2 A second embodiment of the burner according to the invention is shown in FIG.
- the burner shown in FIG. 2 differs from the burner shown in FIG. 1 only in that the swirl blades 137 have no cavities.
- sen ie the swirl vanes 137 are not formed as hollow blades, and that nozzle tubes 139 are arranged in the air inlet passage 35.
- the nozzle tubes 139 are formed as hollow tubes ⁇ and border with an open end 143 to an outlet opening 145 of the gas supply channel 31 at.
- Each of the SI ⁇ senrohre 139 includes a number of nozzles 141 through which a 139 supplied gaseous fuel is injected into the air supply duct 35 via the gas supply passage 31 and the cavity of the nozzle tubes when the burner with gaseous fuel material is operated.
- a carrier stream with finely distributed fuel droplets or vaporized fuel is injected into the air supply channel 35 in an analogous manner.
- the injection of the liquid fuel into the carrier stream is carried out so as wor ⁇ is described with reference to FIG. 1
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05797157.4A EP1800061B1 (de) | 2004-10-11 | 2005-09-23 | Brenner für fluidische brennstoffe und verfahren zum betreiben eines derartigen brenners |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04024185A EP1645805A1 (de) | 2004-10-11 | 2004-10-11 | Brenner für fluidische Brennstoffe und Verfahren zum Betreiben eines derartigen Brenners |
EP05797157.4A EP1800061B1 (de) | 2004-10-11 | 2005-09-23 | Brenner für fluidische brennstoffe und verfahren zum betreiben eines derartigen brenners |
PCT/EP2005/054796 WO2006040255A1 (de) | 2004-10-11 | 2005-09-23 | Brenner für fluidische brennstoffe und verfahren zum betreiben eines derartigen brenners |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1800061A1 true EP1800061A1 (de) | 2007-06-27 |
EP1800061B1 EP1800061B1 (de) | 2016-04-13 |
Family
ID=34926938
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04024185A Withdrawn EP1645805A1 (de) | 2004-10-11 | 2004-10-11 | Brenner für fluidische Brennstoffe und Verfahren zum Betreiben eines derartigen Brenners |
EP05797157.4A Ceased EP1800061B1 (de) | 2004-10-11 | 2005-09-23 | Brenner für fluidische brennstoffe und verfahren zum betreiben eines derartigen brenners |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04024185A Withdrawn EP1645805A1 (de) | 2004-10-11 | 2004-10-11 | Brenner für fluidische Brennstoffe und Verfahren zum Betreiben eines derartigen Brenners |
Country Status (3)
Country | Link |
---|---|
US (1) | US8465276B2 (de) |
EP (2) | EP1645805A1 (de) |
WO (1) | WO2006040255A1 (de) |
Families Citing this family (11)
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EP1645805A1 (de) * | 2004-10-11 | 2006-04-12 | Siemens Aktiengesellschaft | Brenner für fluidische Brennstoffe und Verfahren zum Betreiben eines derartigen Brenners |
ITTO20050208A1 (it) * | 2005-03-30 | 2006-09-30 | Ansaldo Energia Spa | Gruppo bruciatore a gas per una turbina a gas |
US20100233640A1 (en) * | 2008-02-07 | 2010-09-16 | Radek Masin | Glycerin burning system |
US20090202953A1 (en) * | 2008-02-07 | 2009-08-13 | Radek Masin | Glycerin burning system |
EP2423591B1 (de) * | 2010-08-24 | 2018-10-31 | Ansaldo Energia IP UK Limited | Verfahren zum Betrieb einer Brennkammer |
CA2833205C (en) * | 2010-12-30 | 2019-08-20 | Rolls-Royce Power Engineering Plc | Method and apparatus for isolating inactive fluid passages |
WO2016064391A1 (en) * | 2014-10-23 | 2016-04-28 | Siemens Energy, Inc. | Flexible fuel combustion system for turbine engines |
WO2016104725A1 (ja) * | 2014-12-25 | 2016-06-30 | 川崎重工業株式会社 | バーナ、燃焼器、及びガスタービン |
US10352570B2 (en) * | 2016-03-31 | 2019-07-16 | General Electric Company | Turbine engine fuel injection system and methods of assembling the same |
CN113856568A (zh) * | 2021-09-28 | 2021-12-31 | 联化新瑞(北京)科技有限公司 | 3-羟基丙醛加氢制备1,3丙二醇的反应器及其控制方式 |
EP4206535A1 (de) * | 2021-12-30 | 2023-07-05 | Ansaldo Energia Switzerland AG | Brenneranordnung mit inline-injektoren |
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-
2004
- 2004-10-11 EP EP04024185A patent/EP1645805A1/de not_active Withdrawn
-
2005
- 2005-09-23 EP EP05797157.4A patent/EP1800061B1/de not_active Ceased
- 2005-09-23 WO PCT/EP2005/054796 patent/WO2006040255A1/de active Application Filing
- 2005-09-23 US US11/665,100 patent/US8465276B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO2006040255A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1800061B1 (de) | 2016-04-13 |
EP1645805A1 (de) | 2006-04-12 |
US8465276B2 (en) | 2013-06-18 |
WO2006040255A1 (de) | 2006-04-20 |
US20090061365A1 (en) | 2009-03-05 |
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